Polished rod guards

ABSTRACT

Five-eighths inch X fortyfive inch steel rods (eiht) mounted upon a primary or base plate attached to the stuffing box of an oil well pumping unit; said rods being positioned 3* outward diametrically from vertical to allow gravity centered positions trending away from the up and down vertical movement of polished rod &amp; hanger; and forming a 3 - sided guard to protect operating personnel from vertical movement of polished rod &amp; hanger.

ilnited States Patent [19] Watson [451 May 6,1975

[ POLISHED ROD GUARDS [76] Inventor: James R. Watson, PO. Box 831, Big Lake, Tex. 76932 [22] Filed: July 5, 1973 [21] Appl. No.: 376,887

[52] US. Cl 74/608; 74/612 [51] Int. Cl Fl6p 1/02 [58] Field of Search 74/612, 608; 49/131; 256/21 [56] References Cited UNITED STATES PATENTS 2,503,144 4/1950 Willers 74/612 2,557,300 6/1951 Lowry.... 74/612 X 3,587,344 6/1971 Plumb 74/612 OTHER PUBLICATIONS General Information Concerning Patents, US. Dept.

of Comm. Patent Office, Publication, 1973, American Machinist, May 10, 1945, p. 134.

Primary Examiner-Samuel Scott Assistant ExaminerF. D. Shoemaker [5 7 ABSTRACT Five-eighths inch forty-five inch steel rods (eight) mounted upon a primary or base plate attached to the stuffing box of an oil well pumping unit; said rods being positioned 3 outward diametrically from vertical to allow gravity centered positions trending away from the up and down vertical movement of polished rod & hanger; and forming a 3 sided guard to protect operating personnel from vertical movement of polished rod & hanger.

4 Claims, 2 Drawing Figures PATENTEDHAY 6|975 FIG] FIG. 2

POLISHED ROD GUARDS This invention generally relates to safety devices of the barrier type. This particular invention was designed to preclude injuries to operators of oil well pumping units, as well as injury to livestock not uncommonly inhabiting the premises.

It is a principal object of this invention to provide a barriertype of protection for operating personnel of oil well pumping units where none at present exists.

A still further object of the invention is to provide a barrier or effective protection which includes few parts, is simple to install, and may be quickly and easily dismantled.

It is an additional object of this invention to provide a protection that may be economically produced, and may also be salvaged at original face value.

A better understanding of the objects, advantages, features, properties and relationships of this invention will become apparent upon examination of the description and accompanying drawings which set forth in detail the embodiments that are indicative of the ways in which the principles of this invention are employed.

In the drawings:

FIG. 1 is a perspective view of this invention with the different parts and segments numbered detailing their relationships and functions.

FIG. 2 is a partial perspective, or plan view of the invention looking down upon the base plate assembly and showing the simplicity of design.

Turning first to FIG. 1 for an overall understanding of this invention, it is seen that segments No. l and 2 are the companion base plate componments of the invention; parts No. 3 and 20 are lugs attached to the base plate, 1 and 2, each tapped with five-eighths inch holes to allow insertion of one-half inch bolt, similarily, parts No. 21 and 23 or same. Part No. is a 2% inches center hole which when placed around bottom of stuffing box allows both sections of base plate to be joined and secured by tightening of bolts in parts 3 and and parts 21 and 23. Parts 4, 5, 6, 7, 8, 9, l0, 11 are threefourths inch X four and one-half inches lgth. pipe receptacles welded equidistant to edges of front and two sides of base plate and project outwardly at 3 from true diametric center to allow development of gravity center fixing parts Nos. 12, 13, l4, l5, l6, 17, 18, 19 (guard rods, five-eighths inch X forty-five inches) in an outward trending position away from polished rod and hanger. Guard rods simply slip into receptales and may be easily lifted out of receptacles.

From the forgoing description of the construction of this invention, it is seen that a safety barrier has been effected for the three open sides of the polished rod which does not of itself pose a hazard, and through the use of substantial identical parts manufacturing costs may be s considerably reduced.

As will be apparent to persons skilled in the art, modifications variations and adaptations of the foregoing specific disclosure can be made without departing from the teachings of the present invention.

I claim:

1. A safety device particularly suited for use as a guard for the the vertical reciprocating motion of the polished rod and rod hanger of a pumping oil well, said guard securely attached in a fixed and stationary position horizontal to the stuffing box of an oil well and including a plurality of upwards standing guard rods.

2. The safety device of claim 1 wherein said guard rods are positioned 3 diametrically outward from vertical thereby to permit development of a center of gravity and fix the position of the guard rods securely.

3. The safety device of claim 1 wherein each said guard rod member is or, may be selectively removable to facilitate servicing of the stuffing box.

4. The safety device of claim 2 wherein each said rod guard member is selectively removable to facilitate dis assembly completely the entire invention in order to service the oil well. 

1. A safety device particularly suited for use as a guard for the the vertical reciprocating motion of the polished rod and rod hanger of a pumping oil well, said guard securely attached in a fixed and stationary position horizontal to the stuffing box of an oil well and including a plurality of upwards standing guard rods.
 2. The safety device of claim 1 wherein said guard rods are positioned 3* diametrically outward from vertical thereby to permit development of a center of gravity and fix the position of the guard rods securely.
 3. The safety device of claim 1 wherein each said guard rod member is or, may be selectively removable to facilitate servicing of the stuffing box.
 4. The safety device of claim 2 wherein each said rod guard member is selectively removable to facilitate dis - assembly completely the entire invention in order to service the oil well. 